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发明名称
Chisel for breaker
摘要
申请公布号
KR20120006600(U)
申请公布日期
2012.09.26
申请号
KR20110002193U
申请日期
2011.03.17
申请人
发明人
分类号
E21B10/58;E02F5/30
主分类号
E21B10/58
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代理人
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